Java tutorial
//package com.java2s; /* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ import java.awt.Component; public class Main { /** * Use this static method if you want to center a component over another * component. * * @param parent * the component you want to use to place it on * @param toBeCentered * the component you want to center */ public static void centerComponentInComponent(Component parent, Component toBeCentered) { toBeCentered.setLocation(parent.getX() + (parent.getWidth() - toBeCentered.getWidth()) / 2, parent.getY() + (parent.getHeight() - toBeCentered.getHeight()) / 2); toBeCentered.validate(); toBeCentered.repaint(); } }